Improvement in brick-machines



J. LQ HAWS. BRICK-MACHINE.

No, 193,245, Patented my 17,.'187-7.

- ATTORN EY.

' UNITED STATES JOHN L. HAWS, OF JOHN STOWN PENNSYLVANIA.

IMPROVEMENT IN BRICK-MACHINES. i

Specification forming part of Letters Patent No. i93,245, dated July 17, 1877; application filed May 19, 1877.

To all whom it may conce/rn v Be it known that I, JOHN L. Ems, of

Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and valuable Improvement in BrickPresses; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a front view, part sectional, of my brickpress 5 and Fig. 2 is a part-sectional side elevation of the same.

The nature of my invention consists in the construction and arrangement of a press forpressing brick by steam, as will be hereinafter more fully set forth.

The annexed drawing, to which reference is made, fully illustrates my invention.

A represents the bedplate, from which rises a frame, B, of any suitable construction.

On the front of this frame, at the top, is se.

cured a vertical steam-cylinder, G, into the ends of which steam is admitted from a valvechest, D, through pipes D1 D1. The valve Dz` within the chest D has an arm, a,ron one of its journals, (the valve being an ordinary rocking valve,) and saidv arm is, by a rod, b, connected with a lever, E, pivoted` to the frame B, for the operator to work the valve as required.

Within the cylinder C is a piston, 01, with piston-rod C2, passing through both heads of the cylinder. 0n the lower end of the pistonrod C2 is secured the presser-block Gr, to it in the die H, secured on the table I, which is permanently fastened to the frame. This die, as well as the presser-block G, may be of any desired size and shape, according to the size and shape of the brick to be pressed.

J is the bottom of the die H, acting as a follower, and provided with a downwardlyprojecting rod, J1, passing through a stationary arm, J2, projecting from the frame below the table. v

On the rod J1 is a cross-bar, K, connected with a cross-bar, L, attached to the presserblock G by means of rods d d. These rods pass loosely through the ends of the crossbar K, but are made fast in the cross-bar L, and pass through vertical tubular guides h h, attached .to the table I. These tubular guides prevent the presser-block from turning, and insure its proper descent into the die H.

The piston (l1 being at the top of the cylinder (l, the follower J is, by the rods d and crossbars K L, raised to the top of the die H. The brick to be pressed is placed on the follower and the valve D2 reversed, `so as to .ad-- mit steam in the top ofthe cylinder C to force.

the piston downward. As the presser-block G then descends on top of the brick the follower J is forced downward till the rod J1 rests on the bed A, when the still further `descent of the presser-block nishes the pressing of the brick. The valve D2 then being reversed to admit steam under the piston, the presser-block is raised, and also the follower, so as to raise the pressed brick out of the die,

when it can be easily removed and a newv brick put on to be pressed.

On the lower end of the rod J1, I may attach an adjustable plunger or foot, for the purpose of regulating the stroke of the bot- ,tom J to 'suit diiferent thicknesses of brick in the same die.

What I claim as new, and desire to secure by Letters Patent, is-

l. The rocking valve D2, provided with the -arm a and rod b, in combination with the le- JOHN L. HAWS.

Witnesses: t.

CHARLIE WILSON, DAVID M. SINGER.

ATENT OEEIcE. 

